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E.1 Introduction
E
Subroutines for LAN Control
In addition to the sample programs described in Appendix D, a number of
subroutines are provided as a way of extending the capabilities of the sample
programs. Table E–1 describes the subroutines.
Table E–1 Subroutines for LAN Control
Subroutine Description
To manage LAN adapters:
SYS$LAVC_START_BUS Directs PEDRIVER to start the NISCA protocol on a
specific LAN adapter.
SYS$LAVC_STOP_BUS Directs PEDRIVER to stop the NISCA protocol on a
specific LAN adapter.
To control the network failure analysis system:
SYS$LAVC_DEFINE_NET_COMPONENT Creates a representation of a physical network
component.
SYS$LAVC_DEFINE_NET_PATH Creates a directed list of network components between
two network nodes.
SYS$LAVC_ENABLE_ANALYSIS Enables the network failure analysis, which makes it
possible to analyze future channel failures.
SYS$LAVC_DISABLE_ANALYSIS Stops the network failure analysis and deallocates the
memory used for the physical network description.
E.1.1 Purpose of the Subroutines
The subroutines described in this appendix are used by the the LAN control
programs, LAVC$FAILURE_ANALYSIS.MAR, LAVC$START_BUS.MAR, and
LAVC$STOP_BUS.MAR. Although these programs are sufficient for controlling
LAN networks, you may also find it helpful to use the LAN control subroutines to
further manage LAN adapters.
E.2 Starting the NISCA Protocol
The SYS$LAVC_START_BUS subroutine starts the NISCA protocol on a specified
LAN adapter. To use the routine SYS$LAVC_START_BUS, specify the following
parameter:
Subroutines for LAN Control E–1